Method of producing mottled or variegated paper.



G. H. WAITE & G. WALKER. METHOD OF PRODUCING MOTTLED 0R VARIEGATED PAPER.

APPLICATION EIYLED FEB. 13,1911.

g 7' ;2: w WITNESSES: W' INVENTORS gag ing W222. l "2 To all whom it may concern:

veyed through the pa 1 UN TED STATES PATENT OFFICE.

COLEMAN H. WAITE AND GEORGE WALKER, OF HOLYOKE, MASSACHUSETTS, ASSIGN- ORS TO TAYLOR-BURT COMPANY, OF HOLYOKE, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

. METHOD- OF PRODUCING MOTTLED OR VARIEGATED PAPER.

Be it known that we, COLEMAN H. WAITE .and GEORGE WALKER, citizens of the United States of America, residing at Holyoke, in

the county of Hampden and State of Mas-' sachusetts, have invented new and useful Improvements in Methods of Producing Mottled or Variegated Paper, of which the following is a specification;

This invention relates to an improvement in paper making, and is especially concerned with the method of producing paper with a mottled or variegated appearance known as a cloud efl'ect.

Broadly, the invention consists in flowing onto the soft pulp, (which is being conper making machne on the usual Fourdrimer wire) a suitable additional quantity of pulp of any desired color,'whereby the intermingling of the two charges of ulp of different colors will produce the e ect desired.

The invention further consists in subjecting the upper surface of the additional supply of colored pulp to a plurality of streams of water, in a spray like form, in order to break up the continuity or even upper surface of this pul flow down onto t e Fourdrinier wire.

before it is allowed to pulp which is upon the In order to fully and clearly understand the nature of the invention we have illustrated one form of apparatus whereby the invention may be earned into effect.

In the drawings forming part of this application,Figure 1 is a longitudinal, sectional view, in side elevation, of a portion of a paper making machine showmg the manner m which the invention is carried out. Fig. 2 is a lan view of the operative parts of the mac ine showing the agitator and the perforated pipe for spraying the pulp before it escapes onto the Fourdrinier wire, and Fig. 3 is-a transverse, detail, sectional view on the line 33, Fig. 2, showing the tank for containing the. colored pulp,

and the means for agitating the same before it flows down onto the Fourdrinier wire, also the pipe for furnishing the spray for diluting the colored pulp. Fig. 4 1s a view illustrating the manner in which the colored pulp flows down the incline and onto the endlesswire conveyer.

Referring to the drawings, in detail, a

Specification of Letters Patent.

Application filed February 13, 1911.

' like condition,

Patented Feb. 20, 1912 Serial No. 608,437.

designates the usual Fourdrinier wire of a paper making machine with the ordinary supporting means therefor, as the rollers b, c, and d, and the tube rollers e. f designates the deckle-strap which runs over the wheels 9 and h,'and is in contact with the wire a. The pulp or half stuff as it is called, is flowed onto the Fourdrinier wire a in the usual manner, and is thenconveyed through the paper making machine in the direction of the arrows z.

Located-above the wire a is a tank jfor containing the source of supply of colored pulp that is to be distributed and intermixed with the pulp on the traveling wire a. 70 indicates the outlet for the contents of the tank j, which leads to a trough-shaped receiving'receptacle m in which are located the agitator-arms 0 that are mounted on a, shaft ;0 to which a driving pulley q is attached. Located adjacent the trough m is a supplemental trough r having an overflow edge 8, and across which'the colored pulp flows onto and down the inclined membert, the lower edge of which terminates adjacent,- and close to the wire a.

In order to cause the-colored or tinted 'pulp in the tank 7- to flow down the inclined member t in a separated or flakea pipe u is located adjacent the edge a and is provided with a series of outlet openings '0 for producing a spray,of

water, as indicated at w. This spray, after it strikes, the upper surface of the pulp in the trough 1', causes the same to be diluted,

separated or scattered into small flakes or patches. In this condition the colored pulp flows down the inclined surface t, as shown in Fig. 4 at m, and when it comes into con-- tact with that on the Fourdrinier 'wire a it will become intermixed therewith by reason of the side shaking action which is imparted thereto in the usual manner. The result is, that the finished product possesses the mottled or variegated appearance of a cloud effect, asit is termed.

It should be understood that we do not limit ourselves to the use of any particular apparatus for producing the results mentioned above; but the structure herein illustrated and described is merely one way 'of producing the kind of paper referred to; nor do we limit ourselves as to the particular location of the tanks or troughs which contain the colored pulp, but in general it should be located near the tube rollers 6.

By reason of the continuous flow of the colored pulp from the tank j into the troughs m or r and over the edge 8, after being thinned or diluted by means of the spray of water w, it'flows in a steady stream in a separated condition down the inclined surface t onto the pulp which is being con- Veyed through the machine on the wire belt a. What we claim, is 7 The method of producing paper with a mottled or variegated surface which consists in conveying a mass of paper-pulp norma through a paper making machine on the Eourdrinier wire and simultaneously causing a paper-pulp of difierent color to How onto the pulp on said wire in a scattered and diluted condition by subjecting the upper surface of the colored pulp to a spray of water which scatters and dilutes the same into small flakes before it fiowsonto the pulp on the Fourdrinier Wire, whereby the variegated efiect is produced.

' COLEN H. WAITE.

GEORGE WALKER. Witnesses:

K. I. CLEMoNs,

HARRY W. BOWEN. 

